Elevator door



y 19,30. J. A. SCHWEIG 1,771,102

ELEVATOR DOOR Filed May 3. 1928 [2 sheets-sheet .1

I g QYQ/A/VFNTOQ:

.f/l Arr-010216715 Patented July 22, 1930 UNITED jsTArEs JULIUS n. SCHWEIG, on ST. LOUIS, MISSOURI I ntnvnron noon" Application filed May s, 1923. serial n... 274,690.

This invention relates to elevator doors of the truckable, counterbalanced type where in the downwardly openingdoor section when fully opened is supported by suitable brackets with itstop surface substantially flush with the door sill and filling the space between said sill and the elevator car so as to sup-. port trucks passing thereover.

The principal object of the present invention is to provide the door section with brackets adapted to rest on the door sillin the fully opened position of the door-section, whereby loads upon said section are transmitted to'said door sill. Another object is to enable the brackets to be adjusted withre lation to the door section to bring the upper edge of the door flush with the door sill. Another object is tostifi'en and strengthen the upper corners of the door section by means of gussetplates whichconstitute supports for said brackets'and have the door arms formed integral therewith. Other objects are simplicity of construction-and economy of-design. y

The invention consists in the elevator door construction and in the combinations and arrangements of parts hereinafter described andclaimed. 1

In the accompanying drawings, which form part of this specification and'wherein like symbols refer-to like parts wherever they occur; j

Fig; 1 is a fragmentary side elevation looking at the shaft side of an 1 elevator door construction embodying my invention;

Fig. 2 is an enlarged horizontal section throughone'side of the elevator door construction onthe line2-2 in Fig. 1; r Fig. 3'is a fragmentary side elevation looking toward the shaft side of the upper corner portion of the lower door section and the portion-of thereto; p y r Fig. 4 is a vertical section: through tjhe'upper portionofthe lower door section on the line H inFigz-3; and. Fig. '5 is a similar section pn inFig.3.

Refrring to the accompanying drawings,

' my invention is shown in connection I with at here of the upper door section.

theelevator shaft located adjacent vertical sliding freight elevator door of the truckable, counterbalanced type comprising upper and lower door sections I and 2 respectively, for "closing the door opening in an elevator shaft. Asshown in the drawing, the upper and lower sliding door sections are provided along each'vertical side edgewith an angle 3 sl'idably arranged between angle bar guides 4 that are rigidly securedto each other and to the adjacent jamb member '5" offthe door opening. The upper and lower door sections are counterbalanced by means of chains 6 suitably connected to the lower cor Saidchains extend upwardly around pulleys (not shown) and thence downwardly in the direction of the lower door section where they are suitably connected to the upper ends of upright Y chain rods 7 whose lower ends are secured to the outer ends of door, arms 8 that project horizontally from said lower door section, The constructionof elevatordoors thus far described is well. known and it is. considered unnecessary to illustrate it in detail. i

g The lower door section 2 comprises a metal edge frame made up of angle iron side frame members 9 and a heavy angle iron top frame member 10, which will be'hereinafter referred to as a trucking bar. The door section 2 is provided with metal covered wooden panels 11 that are bolted or otherwise: rigidly securedto. theangle iron edgeframes thereof. As shown in the drawings," each side angle .9 of the door section 2 terminatesshort of the trucking bar I 10 Whose top flange extends continuously from side to side of said door section and whose depending sideflange terminates short of each side thereof. At each upperIcorner of the lower door section 2 the adjacent ends of the trucking bar 10 and side angle 9,, are rigidly connected together by means of a gusset member in the form of a flanged casting l2 seated in the angles of the trucking bar and side an le. As shown in the'drawings, the gussetrnem er 12 is riveted orotherwise rigidly secured flat,- wise to one flange of the side angleof'the lower doorsection and is also riveted or other- Wise rigidly secured to the depending flangeof the truckingbar and a)- the underside of the trucking bar to the inner edge of the flange of the side frame angle located in the plane of said trucking bar frame.

The brackets or hangers, which serve to suspend the lower door section 2 from the sill' 14: of the door opening in the opened position of said section, are shown in the form of angle-shaped members 15 that are arranged with one flange down and disposed opposite the outer face of the door and with the other flange up and projecting outwardly from the door so as to overlap the door sill. As shown in the drawings, one of the supporting brackets 15 is located at each upper corner of the door and is secured to the combined gusset plate and door arm 12 by means of bolts 16 which extend through holes in the depending flange of said brackets and through elongated slots 17 provided therefor in said gusset plate and are provided with nuts 18 adapted to bear against the inner face of said gusset plate. The slots 17 are disposed vertically whereby said support or bracket member may be adjusted vertically on the door to raise or lower the sill engaging flange thereof. The outer face of each gusset plate 12 is provided opposite the depending vertical flange of the supporting bracket 15 co operating therewith with a series of vertically spaced horizontally extending teeth '19 adapted to cooperate with a similar series of teeth 20 formed on the inner face of said flange of said supporting bracket. By this arrangement, the teeth on the supporting bracket from a series of supports for the teeth on the gusset plate; and the two series of teeth are firmly held in engagement with each other by means'of clamping bolts 16. When it is desired to adjust the supporting brackets on the door section, the bolts are loosened to permit the teeth on the supporting bracket to become disengaged from the teeth on the gusset plate, whereby the supporting bracket may be adjusted vertically on the door as far as the elongated slots 17 will permit.

With the arrangement described, the gusset plates 12 at the upper corners of the lower door section serveto greatly increase the strength and rigidity of said section thereof; and they also have the door arms 8 formed integral therewith, thereby dispensing with the use of separate door arms and eliminating the cost of attaching such arms to the door section. The gusset plates also constialinement with the door sill when the door section is fully opened.

Obviously, the hereinbefore described door construction admits of considerable modification without departing from the invention; therefore, I do not Wish to be limited to the precise construction shown and described.

What I claim is 1. A truckable counterbalanced elevator door comprising a downwardly movable door section having top and side frame members, a separate gusset member directly connecting the adjacent ends of the top and side frame members at each upper corner of said door section and having a door arm formed integral therewith and a supporting bracket adjustably secured to each of said gusset members and adapted to engage the sill of the door opening.

2. A truckable counterbalanced door comprising a downwardly movable door section having a trucking bar at its upper edge and metal frame members at its side edges, a gusset plate connecting adjacent ends of said trucking bar and said side frame members at each upper corner of said door section, a supporting bracket secured to each of said gusset plates and having an outstanding flange adapted to engage the sill of the door opening, means for adjusting said bracket vertically on said gusset plate, and means for rigidly securing said supporting bracket to said gusset plate in any desired position'of adjustment.

3. A truckable counterbalanced door comprising a downwardly movable door section having a trucking bar at its upper edge and metal frame members at its side edges, a gusset plate connecting adjacent ends of said trucking bar and said side frame members at each upper corner of said door section, a supporting bracket secured to each of said gusset plates and having an outstanding flange adapted to engage the sill of the door opening, means for adjusting said bracket vertically on said gusset plate, and means for rigidly securing said supporting bracket to said gusset plate in any desired position of adjustment, saidgusset plates having door arms projecting horizontally therefrom and formed integral therewith.

4. A truckable counterbalanced door comprising a downwardly movable door section, supporting bracket-s secured to the outer face of said door section having outstanding flanges adapted to engage the sill of the door opening, and means for adjusting said brackets vertically relative to said door section.

5. A truckable counterbalanced door comprising a downwardly movable door section,

supporting brackets securedto theouter face of said door section having outstanding flanges adapted to engage the sill of the door opening, means for adjusting said brackets vertically relative to said door section, and means for rigidly securing said supporting brackets to said door section in any desired position of adjustment.

6. A truckable counterbalanced door comprising a downwardly movable door section having door arms projecting horizontally 4 therefrom and formed integral therewith.

7. A truckable counterbalanced door comprising a downwardly movable door section having a trucking bar at its upper edge and metal frame members at its side edges, a gusset plate connecting adjacent ends of said trucking bar and said side frame members at each upper corner of said door section, a supporting bracket mounted on each of said gusset plates and having an outstanding flange adapted to engage the sill of the door opening, cooperating Vertically spaced horzontally extending teeth on the opposing faces of said gusset plate and said sup-porting bracket, whereby said bracket may be adjusted vertically on said gusset plate, and means for rigidly securing said supporting bracket to said gusset plate in any desired position of adjustment. 7

8. A tru'ckable counterbalanced elevator door comprising a vertically sliding door section having top and side frame members, and a separate gusset member located in the angle formed by the top and side frame members at each upper corner of said door section and rigidly connecting the adjacent ends of said frame members, said gussetmember having a door arm formed integral therewith and extending outwardly beyond the adjacent end of the top frame member.

Signed at St. Louis, Mo., this 30th day of April, 1928.

' JULIUS SCHWEIG. 

